Rape. Rape in early spring is mild and rich in nutrients such as carotene, vitamin C, calcium and iron. Has the effects of clearing away heat and toxic materials, and can be used for preventing and treating diseases such as angular stomatitis, oral ulcer, gingival bleeding, etc. Shepherd's shepherd's purse, especially wild shepherd's purse, is light and sweet, has a unique fragrance, and contains more nutrients such as protein, fat, carotene and various minerals. Make shepherd's purse porridge for children in spring, or stir-fry eggs with shepherd's purse, braised dried tofu, or make shepherd's purse spring rolls, chaos, shredded pork soup, etc. It can not only supplement rich nutrition, but also prevent and treat measles, meningitis and other spring infectious diseases and respiratory infections. Sesame. In addition to providing children with rich vitamin B, sesame is also a "master" of calcium supplementation. Proper consumption of sesame seeds can supplement the calcium needed for children's growth and development. Spinach. Spinach in spring is fresh and tender, and contains nutrients such as protein, fat, calcium, iron and vitamin C, which is very helpful for primary school students in the growing period.